title: Performance evaluation of computerized treatment planning systems for radiotherapy: external photon beams.
mesh_terms: D003201:Computers; D004601:Elementary Particles; D006801:Humans; D008961:Models, Structural; D010347:Patient Care Planning / Q000592:standards*; D011879:Radiotherapy Dosage; D011882:Radiotherapy, High-Energy / Q000295:instrumentation